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Goodwill and Intangible Assets - Goodwill Identified, by Segment (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Line Items]
Beginning Balance	$ 1,493	$ 2,807
Goodwill acquired during period	34	4
Impairment	0	(1,295)	$ (3,509)
Currency translation adjustments and other		(23)
Ending Balance	1,527	1,493	2,807
Wellbore Technologies [Member]
Goodwill [Line Items]
Beginning Balance	308	843
Goodwill acquired during period	34	4
Impairment		(517)
Currency translation adjustments and other		(22)
Ending Balance	342	308	843
Completion & Production Solutions [Member]
Goodwill [Line Items]
Beginning Balance	473	1,054
Impairment		(580)
Currency translation adjustments and other		(1)
Ending Balance	473	473	1,054
Rig Technologies [Member]
Goodwill [Line Items]
Beginning Balance	712	910
Impairment		(198)
Ending Balance	$ 712	$ 712	$ 910

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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